Add 84/75 and 90/45
1st number: 1 9/75, 2nd number: 2 0/45
84/75 + 90/45 is 78/25.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 45 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 75 × 3 = 225,
84/75 = 84 × 3/75 × 3 = 252/225 - Likewise, for the 2nd fraction, since 45 × 5 = 225,
90/45 = 90 × 5/45 × 5 = 450/225 - Add the two like fractions:
252/225 + 450/225 = 252 + 450/225 = 702/225 - 702/225 simplified gives 78/25
- So, 84/75 + 90/45 = 78/25
In mixed form: 33/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: